Nestled in the heart of Manama’s industrial landscape, Junaid Metals has built a strong reputation for precision and reliability. We take particular pride in our expertise with Duplex Steel S31803 forgings, a specialized product that demands exacting standards. Our dedicated team ensures that every forged component we produce meets the rigorous demands of the region’s most challenging industries, combining robust strength with exceptional corrosion resistance to deliver solutions that are built to perform and endure in the toughest environments.
The strength of Duplex Steel S31803 lies in its balanced composition of chromium, nickel, molybdenum, and nitrogen. This mix gives it a unique two-phase microstructure that results in mechanical properties which are the best of both worlds. It offers yield strength that is about double that of standard austenitic stainless steels, alongside excellent toughness and ductility. This combination makes it remarkably resistant to stress corrosion cracking, providing a level of durability that stands up to immense pressure and aggressive chemicals.
| Specifications | ASTM A182, ASME SA182 |
|---|---|
| Standard | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex Steel S31803 | 1.4462 | S31803 |
The maximum operating temperature for Duplex Steel S31803 forgings is typically around 300°C (572°F). Beyond this temperature, the material may experience reduced strength and susceptibility to stress corrosion cracking.
Duplex Steel S31803 forgings are available in various sizes, including diameters ranging from 10 mm to 800 mm, and shapes like round, square, billets, blocks, and custom configurations, based on application needs.
Yes, S31803 Duplex Steel forgings are highly resistant to corrosion, especially in chloride-rich environments. They offer excellent protection against pitting, crevice, and stress corrosion cracking, making them ideal for harsh industrial applications.
The superior attributes of Duplex Steel S31803 forgings make them invaluable across a wide spectrum of heavy-duty applications. You will commonly find them in critical components for the oil and gas sector, such as valve bodies, pump shafts, and wellhead equipment, where they withstand high pressures and corrosive sour gas. They are also essential in chemical processing plants, marine environments for propeller shafts, and in desalination units, proving their worth anywhere exceptional strength and resistance to pitting and chloride attack are non-negotiable for long-term operational safety and efficiency.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Junaid Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manama, Bahrain
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